OpSim is an open source Chemical Engineering Process Simulator with a user friendly drag-and-drop graphical user interface and an underlying high performance simulation engine.
We believe that making something great starts with the basis. OpSim is well designed software with the user in mind from the beginning. OpSim is cross-platform and runs equally well on Linux, Windows and Macintosh computers. It comes with a large component and module database. No need to start hacking yourself, but if you want, you can easily extend the functionality with Python.
You are free to use OpSim for any purpose, including commercially or for education. This freedom is being defined by OpSim’s GNU General Public License (GPL).
Performance is not just an afterthought, we baked it in from the start!
Simple text files means Grav is trivial to install, and easy to maintain
Grav employs best-in-class technologies such as Twig, Markdown & Yaml
From the ground up, with many plugin hooks, Grav is extremely extensible
A vibrant developer community means 200+ plugins available to download
Grav is an open source project, so you can spend your money on other stuff